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ARC-Easy / Mercury_7205923 / Some scientists once believed that Earth was solid like a marble. Which of these…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Some scientists once believed that Earth was solid like a marble. Which of these has been most responsible for changes in the scientific view of the structure of Earth?

choices

  • discussions among earth scientists about new data
  • scientific books defining the layers of Earth
  • a lead scientist explaining the structure of Earth
  • a physical model of Earth showing its layers

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Source and history

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